This lesson covers atomic structure and the periodic table. It explains key vocabulary such as atomic mass, atomic number, and isotopes. The lesson details how to read the periodic table, focusing on understanding the information in a single element box, including atomic number, atomic mass, and the apeman trick for determining protons, neutrons, and electrons.

What is the basic unit of matter?

• Electron

• Proton

• Atom

• Molecule

Tags

NGSS.MS-PS1-1

What does the atomic number of an element represent?

• Number of electrons

• Number of protons

• Number of isotopes

• Number of neutrons

Which subatomic particle has a negative charge?

• Electron

• Neutron

• Nucleus

• Proton

What is the mass number of an atom?

• Total number of neutrons

• Total number of electrons

• Total number of protons and neutrons

• Total number of protons

What is the center of an atom called?

• Electron cloud

• Nucleus

• Neutron

• Proton

What does the whole number at the top of a periodic table box represent?

• Atomic number

• Element symbol

• Element name

• Atomic mass

What is the symbol for nitrogen?

• Ne

• Na

• Ni

• N

How do you calculate the number of neutrons in an atom?

• Subtract the atomic number from the atomic mass

• Add the atomic number and atomic mass

• Multiply the atomic number by the atomic mass

• Divide the atomic mass by the atomic number

What does the acronym AMU stand for?

• Atomic Mass Unit

• Atomic Molecular Unit

• Average Mass Unit

• Atomic Measurement Unit

Tags

NGSS.MS-PS1-5

What is the charge of a proton?

• No charge

• Neutral

• Positive

• Negative